/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:05:36,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:05:36,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:05:36,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:05:36,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:05:36,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:05:36,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:05:36,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:05:36,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:05:36,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:05:36,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:05:36,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:05:36,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:05:36,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:05:36,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:05:36,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:05:36,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:05:36,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:05:36,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:05:36,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:05:36,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:05:36,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:05:36,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:05:36,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:05:36,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:05:36,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:05:36,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:05:36,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:05:36,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:05:36,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:05:36,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:05:36,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:05:36,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:05:36,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:05:36,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:05:36,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:05:36,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:05:36,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:05:36,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:05:36,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:05:36,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:05:36,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 20:05:36,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:05:36,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:05:36,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:05:36,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:05:36,704 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:05:36,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:05:36,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:05:36,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:05:36,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:05:36,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:05:36,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:05:36,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:05:36,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:05:36,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:05:36,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:05:36,708 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:05:36,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:05:36,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:05:36,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:05:36,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:05:36,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:05:36,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:05:36,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:05:36,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:05:36,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:05:36,710 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:05:36,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:05:36,711 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:05:36,711 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:05:36,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:05:36,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:05:36,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:05:36,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:05:36,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:05:37,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:05:37,001 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:05:37,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i [2020-04-18 20:05:37,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74de8c9be/bdc8495f3ffd48a8a94be87df449106e/FLAG2294fe5b5 [2020-04-18 20:05:37,591 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:05:37,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i [2020-04-18 20:05:37,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74de8c9be/bdc8495f3ffd48a8a94be87df449106e/FLAG2294fe5b5 [2020-04-18 20:05:37,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74de8c9be/bdc8495f3ffd48a8a94be87df449106e [2020-04-18 20:05:37,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:05:37,959 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:05:37,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:05:37,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:05:37,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:05:37,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:05:37" (1/1) ... [2020-04-18 20:05:37,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10143938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:37, skipping insertion in model container [2020-04-18 20:05:37,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:05:37" (1/1) ... [2020-04-18 20:05:37,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:05:38,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:05:38,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:05:38,591 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:05:38,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:05:38,747 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:05:38,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38 WrapperNode [2020-04-18 20:05:38,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:05:38,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:05:38,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:05:38,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:05:38,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:05:38,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:05:38,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:05:38,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:05:38,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... [2020-04-18 20:05:38,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:05:38,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:05:38,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:05:38,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:05:38,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:05:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:05:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 20:05:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:05:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:05:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 20:05:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 20:05:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 20:05:38,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 20:05:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 20:05:38,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:05:38,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:05:38,893 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 20:05:39,290 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:05:39,291 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 20:05:39,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:05:39 BoogieIcfgContainer [2020-04-18 20:05:39,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:05:39,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:05:39,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:05:39,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:05:39,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:05:37" (1/3) ... [2020-04-18 20:05:39,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5428db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:05:39, skipping insertion in model container [2020-04-18 20:05:39,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:05:38" (2/3) ... [2020-04-18 20:05:39,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5428db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:05:39, skipping insertion in model container [2020-04-18 20:05:39,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:05:39" (3/3) ... [2020-04-18 20:05:39,305 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_power.oepc.i [2020-04-18 20:05:39,316 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:05:39,316 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:05:39,325 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:05:39,326 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:05:39,348 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,348 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,348 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,349 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,349 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,349 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,350 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,350 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,350 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,351 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,351 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,351 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,355 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,356 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,356 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,356 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,362 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,363 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:05:39,377 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 20:05:39,394 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:05:39,395 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:05:39,397 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:05:39,398 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:05:39,398 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:05:39,398 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:05:39,398 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:05:39,398 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:05:39,412 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 20:05:39,484 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1121 states. [2020-04-18 20:05:39,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states. [2020-04-18 20:05:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:05:39,505 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:39,506 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:05:39,507 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:39,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:39,514 INFO L82 PathProgramCache]: Analyzing trace with hash -328445311, now seen corresponding path program 1 times [2020-04-18 20:05:39,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:39,522 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [906524476] [2020-04-18 20:05:39,538 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:39,551 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:05:39,553 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 20:05:39,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:05:39,555 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:39,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:39,555 INFO L82 PathProgramCache]: Analyzing trace with hash -328445311, now seen corresponding path program 2 times [2020-04-18 20:05:39,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:39,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584194148] [2020-04-18 20:05:39,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:39,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584194148] [2020-04-18 20:05:39,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:39,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:05:39,970 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:39,974 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:39,983 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:05:39,983 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:40,066 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:40,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:05:40,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:05:40,074 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 6 states. [2020-04-18 20:05:40,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:40,163 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-04-18 20:05:40,164 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-04-18 20:05:40,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:40,165 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [906524476] [2020-04-18 20:05:40,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:40,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:05:40,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [906524476] [2020-04-18 20:05:40,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:05:40,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:40,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:05:40,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:05:40,174 INFO L87 Difference]: Start difference. First operand 1121 states. Second operand 6 states. [2020-04-18 20:05:40,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:40,333 INFO L93 Difference]: Finished difference Result 1046 states and 2616 transitions. [2020-04-18 20:05:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:05:40,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-04-18 20:05:40,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:40,358 INFO L225 Difference]: With dead ends: 1046 [2020-04-18 20:05:40,358 INFO L226 Difference]: Without dead ends: 504 [2020-04-18 20:05:40,360 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:05:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-04-18 20:05:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-04-18 20:05:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-04-18 20:05:40,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1219 transitions. [2020-04-18 20:05:40,453 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1219 transitions. Word has length 31 [2020-04-18 20:05:40,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:40,453 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 1219 transitions. [2020-04-18 20:05:40,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:05:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1219 transitions. [2020-04-18 20:05:40,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:05:40,457 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:40,457 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:05:40,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:40,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:40,458 INFO L82 PathProgramCache]: Analyzing trace with hash 2045091331, now seen corresponding path program 1 times [2020-04-18 20:05:40,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:40,459 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1766742884] [2020-04-18 20:05:40,461 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:40,462 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 163 transitions. [2020-04-18 20:05:40,464 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2020-04-18 20:05:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 20:05:40,466 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:40,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:40,468 INFO L82 PathProgramCache]: Analyzing trace with hash 2045091331, now seen corresponding path program 2 times [2020-04-18 20:05:40,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:40,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494109574] [2020-04-18 20:05:40,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:40,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:40,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494109574] [2020-04-18 20:05:40,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:40,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:40,643 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:40,646 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:40,652 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 75 transitions. [2020-04-18 20:05:40,652 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:40,701 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:40,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:40,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:05:40,701 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2020-04-18 20:05:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:40,863 INFO L93 Difference]: Finished difference Result 100 states and 163 transitions. [2020-04-18 20:05:40,863 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 163 transitions. [2020-04-18 20:05:40,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:40,864 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1766742884] [2020-04-18 20:05:40,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:40,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:05:40,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1766742884] [2020-04-18 20:05:40,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 20:05:40,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:40,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:40,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-04-18 20:05:40,867 INFO L87 Difference]: Start difference. First operand 504 states and 1219 transitions. Second operand 7 states. [2020-04-18 20:05:41,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:41,006 INFO L93 Difference]: Finished difference Result 372 states and 846 transitions. [2020-04-18 20:05:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:05:41,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 20:05:41,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:41,010 INFO L225 Difference]: With dead ends: 372 [2020-04-18 20:05:41,010 INFO L226 Difference]: Without dead ends: 240 [2020-04-18 20:05:41,014 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 20:05:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-04-18 20:05:41,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2020-04-18 20:05:41,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-04-18 20:05:41,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 515 transitions. [2020-04-18 20:05:41,041 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 515 transitions. Word has length 35 [2020-04-18 20:05:41,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:41,042 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 515 transitions. [2020-04-18 20:05:41,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 20:05:41,042 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 515 transitions. [2020-04-18 20:05:41,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:41,044 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:05:41,044 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:05:41,044 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:05:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:41,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1256214719, now seen corresponding path program 1 times [2020-04-18 20:05:41,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:05:41,047 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [698984884] [2020-04-18 20:05:41,049 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:41,057 INFO L259 McrAutomatonBuilder]: Finished intersection with 360 states and 871 transitions. [2020-04-18 20:05:41,066 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-04-18 20:05:41,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:41,071 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:05:41,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:41,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1303635963, now seen corresponding path program 2 times [2020-04-18 20:05:41,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:41,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415443114] [2020-04-18 20:05:41,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:41,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415443114] [2020-04-18 20:05:41,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:41,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:41,296 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:41,300 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:41,315 INFO L259 McrAutomatonBuilder]: Finished intersection with 104 states and 172 transitions. [2020-04-18 20:05:41,316 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:41,410 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:05:41,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:41,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:05:41,411 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 7 states. [2020-04-18 20:05:41,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:41,665 INFO L93 Difference]: Finished difference Result 370 states and 880 transitions. [2020-04-18 20:05:41,665 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 880 transitions. [2020-04-18 20:05:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:41,667 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:05:41,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:41,668 INFO L82 PathProgramCache]: Analyzing trace with hash -385252347, now seen corresponding path program 3 times [2020-04-18 20:05:41,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:41,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914505574] [2020-04-18 20:05:41,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:41,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:41,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914505574] [2020-04-18 20:05:41,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:41,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:41,863 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:41,867 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:41,876 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 165 transitions. [2020-04-18 20:05:41,876 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:41,985 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 20:05:41,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:41,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-04-18 20:05:41,986 INFO L87 Difference]: Start difference. First operand 370 states and 880 transitions. Second operand 7 states. [2020-04-18 20:05:42,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:42,121 INFO L93 Difference]: Finished difference Result 494 states and 1124 transitions. [2020-04-18 20:05:42,121 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 1124 transitions. [2020-04-18 20:05:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 20:05:42,123 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:05:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:05:42,124 INFO L82 PathProgramCache]: Analyzing trace with hash 341612163, now seen corresponding path program 4 times [2020-04-18 20:05:42,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:05:42,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647603458] [2020-04-18 20:05:42,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:05:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:05:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:05:42,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647603458] [2020-04-18 20:05:42,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:05:42,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:05:42,281 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:05:42,286 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:05:42,320 INFO L259 McrAutomatonBuilder]: Finished intersection with 136 states and 261 transitions. [2020-04-18 20:05:42,320 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:05:42,386 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 20:05:42,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:05:42,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2020-04-18 20:05:42,388 INFO L87 Difference]: Start difference. First operand 494 states and 1124 transitions. Second operand 7 states. [2020-04-18 20:05:42,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:42,555 INFO L93 Difference]: Finished difference Result 690 states and 1500 transitions. [2020-04-18 20:05:42,555 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1500 transitions. [2020-04-18 20:05:42,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:42,560 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [698984884] [2020-04-18 20:05:42,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:05:42,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:05:42,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [698984884] [2020-04-18 20:05:42,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-04-18 20:05:42,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:05:42,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 20:05:42,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2020-04-18 20:05:42,565 INFO L87 Difference]: Start difference. First operand 240 states and 515 transitions. Second operand 14 states. [2020-04-18 20:05:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:05:43,445 INFO L93 Difference]: Finished difference Result 464 states and 1015 transitions. [2020-04-18 20:05:43,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-04-18 20:05:43,445 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2020-04-18 20:05:43,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:05:43,446 INFO L225 Difference]: With dead ends: 464 [2020-04-18 20:05:43,446 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:05:43,449 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 713 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 20:05:43,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:05:43,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:05:43,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:05:43,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:05:43,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-04-18 20:05:43,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:05:43,450 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:05:43,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-04-18 20:05:43,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:05:43,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:05:43,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:05:43 BasicIcfg [2020-04-18 20:05:43,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:05:43,464 INFO L168 Benchmark]: Toolchain (without parser) took 5524.61 ms. Allocated memory was 145.8 MB in the beginning and 289.9 MB in the end (delta: 144.2 MB). Free memory was 102.3 MB in the beginning and 248.8 MB in the end (delta: -146.5 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:43,465 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 20:05:43,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.15 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 159.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:43,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.72 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:43,473 INFO L168 Benchmark]: Boogie Preprocessor took 28.06 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 156.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:43,474 INFO L168 Benchmark]: RCFGBuilder took 463.36 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 136.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:43,474 INFO L168 Benchmark]: TraceAbstraction took 4162.93 ms. Allocated memory was 202.9 MB in the beginning and 289.9 MB in the end (delta: 87.0 MB). Free memory was 136.5 MB in the beginning and 248.8 MB in the end (delta: -112.3 MB). Peak memory consumption was 97.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:05:43,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.15 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 159.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.72 ms. Allocated memory is still 202.9 MB. Free memory was 159.9 MB in the beginning and 157.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.06 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 156.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 463.36 ms. Allocated memory is still 202.9 MB. Free memory was 156.5 MB in the beginning and 136.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4162.93 ms. Allocated memory was 202.9 MB in the beginning and 289.9 MB in the end (delta: 87.0 MB). Free memory was 136.5 MB in the beginning and 248.8 MB in the end (delta: -112.3 MB). Peak memory consumption was 97.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 216 SDtfs, 385 SDslu, 1134 SDs, 0 SdLazy, 263 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1121occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...